TRIMBLE ceramic infrared heater has the following advantages in this application:

High heating efficiency: TRIMBLE ceramic infrared heater radiates infrared light with medium and long wavelength, ranging from 3 to 10 μ m. It can effectively match the infrared absorption of the film material, and the heating efficiency is very high;

High temperature control accuracy: TRIMBLE ceramic infrared heater temperature can be controlled at+/- 1 ℃, accurate temperature adjustment is very helpful to improve product quality; At the same time, individual areas can be controlled to avoid excessive temperature difference;

High uniformity: areal radiation output ensures uniform temperature on the surface of the film material, and staggered arrangement can be adopted to avoid local temperature non-uniformity;

Long service life: TRIMBLE ceramic infrared radiator has a service life of no less than 20000 hours, and almost requires no maintenance.

Plastic packaging and plastic packaging products occupy a very large share in the market, and are widely used in food, medicine, chemical industry and other fields. Film is an indispensable part of the packaging field.

The common packaging film materials on the market are PTFE, PET, POF, BOPP, LDPE, PP, etc. The biggest feature of this type of material is that it is very thin, the common thickness is about 0.1mm~0.3mm, and it has a strong absorption peak for infrared.

In the existing film production process, infrared radiation heating is often required for the film, and short wave quartz tube is often used as the heat source. However, the peak wavelength of infrared ray radiated by the short wave quartz tube is short wave, and the short wave has strong penetrability, so there are problems of high energy consumption and low heating efficiency in the film heating process. At the same time, the short wave quartz tube in this application also has the problems of uneven heating (low temperature on both sides, high temperature in the middle) and inaccurate temperature control, which affect the product quality.

Infrared radiation heating and drying has the following characteristics in application:

1. High heating efficiency
2. Low heat loss
3. Easy and precise control
4. Material is not easy to change
5. Clean and pollution-free
6. Simple equipment construction

Infrared drying is widely used. Common industries include:

Coating industry: the drying and curing of coatings for components of household appliances, vehicles and other products during the surface coating process, such as the drying of automobile paint, the drying of anti-corrosion coating on the surface of packaging containers, etc.

Leather and footwear industry: leather drying, rubber film activation, drying, etc.

Agriculture and sidelines: drying of grains, fruits and vegetables, drying of medicinal materials, drying of tea, etc.

Paper making industry: coating, coloring, gelatinizing, polishing, drying of printed wallpaper, etc. of special paper, and drying of corrugated paper.

Wood industry: drying of wood, painting and baking of wooden furniture, drying of plywood veneer, etc.

In various applications, the commonly used drying equipment is infrared heating furnace (or high-temperature tunnel furnace, curing furnace, etc., with different names). The core drying part of the equipment is equipped with infrared radiators, which can be divided into natural gas drying furnace, electric infrared drying furnace, etc. according to the different heat sources of the infrared radiators.

Infrared hot air combined drying

Hot air drying can timely take away the water vapor evaporated from the surface of the material, so that the internal moisture of the material can be diffused. The infrared heating technology can make the internal and external moisture of the material heated at the same time, with the same direction of temperature gradient and humidity gradient, so as to speed up the drying process of the material.

The research shows that this technology can significantly improve the drying rate and rehydration rate, and reduce the shrinkage and hardness of the product.

Infrared microwave combined drying

The infrared ray penetration is strong, and it can be used for fast drying of fruits and vegetables with good quality. Microwave has stronger penetrability and can be heated inside and outside at the same time, which is more suitable for agricultural products that are difficult to dry and dehydrate or difficult to lose water in later drying.

The results show that the dehydration rate increases with the increase of far-infrared and microwave power; Far infrared power, microwave power and moisture content of conversion point have significant effects on energy consumption rate and sensory quality of the product. The quality of the finished product is better and the drying rate is faster.

Infrared vacuum combined drying

The biggest characteristic of infrared vacuum drying is to dry in a vacuum environment. The internal pressure of the drying chamber is greater than the external pressure. The fruits and vegetables can be dried quickly under the effect of pressure difference and humidity gradient.

The results show that the whole drying process can be divided into three stages: increasing speed, constant speed and decreasing speed. The drying rate of the product is mainly affected by the radiation intensity.

As a new type of heating technology, infrared heating technology has the advantages of high efficiency, energy saving and pollution-free. Compared with traditional heating technology, it has a wider range of applications. But in China, the application of infrared heating technology combined with other technologies in fruit and vegetable drying is still in its infancy and has not yet formed a scale. Therefore, if the combined drying technology is to achieve automatic control, it is necessary to establish a reasonable mathematical model, which is a key point of future research and also a difficult point. In addition, the equipment of combined drying technology also needs to be constantly improved. Automatic control, safe operation and online accurate detection will become the future development direction.

Our current life is full of all kinds of plastic products, ranging from disposable plastic cups for drinking water to cargo compartments for pickup trucks. Most of these plastic products are produced through plastic suction machines.

Blister molding is also called thermoplastic molding. This molding process mainly uses the vacuum suction generated by the vacuum pump to heat and soften PVC, PP, PS and other thermoplastic plastic sheets into various shapes of vacuum hoods through molds, or stick to the surfaces of products of various shapes. Blister can be divided into thin sheet and thick sheet according to the thickness of the sheet.

Among many medium and long wave infrared heaters, many equipment manufacturers will choose TRIMBLE ceramic infrared heaters, because TRIMBLE ceramic infrared heaters have the following advantages in blister heating:

High radiation efficiency: special ceramic materials radiated by TRIMBLE ceramic infrared heater can convert heat energy into radiant energy for heating materials as much as possible, and the infrared wavelength is medium and long, ranging from 2 to 10 μ m. It can effectively match the infrared absorption of materials, and the heating efficiency is very high;

High temperature control accuracy: TRIMBLE ceramic infrared heater temperature can be controlled at+/- 1 ℃, accurate temperature control is very helpful to improve product quality;

High uniformity: the temperature of the heating surface is uniform, which helps to form a stable and uniform infrared radiation field. When the material is heated, there will be no local uneven temperature problem;

Long service life: TRIMBLE ceramic infrared radiator has a service life of no less than 20000 hours, and almost requires no maintenance.

According to the curing conditions, it can be roughly divided into cold vulcanization, room temperature vulcanization and hot vulcanization. Hot vulcanization is the main vulcanization method of rubber products, which can be divided into the following three types:

Ø Direct vulcanization: put the product directly into hot water or steam medium for vulcanization;

Ø Direct vulcanization: products are vulcanized in hot air (generally used for products with strict appearance requirements);

Ø Gas mixed vulcanization: First use hot air for vulcanization, and then use direct steam for vulcanization (it can effectively reduce the influence of steam on the appearance of products during vulcanization, and also can overcome the shortcomings of long vulcanization time and easy aging of products caused by slow hot air vulcanization).

Nowadays, infrared radiation heating can also be used to vulcanize rubber products directly. A typical example of successful application is the vulcanization of latex film, which can achieve twice the vulcanization speed of steam vulcanization. It has also been reported that it is used for vulcanization of rubber blanket. Infrared radiation heating is also used for preheating before vulcanization, which is more widely used and is suitable for continuous vulcanization line of extruded products. The temperature of semi-finished products will be increased to a certain extent, and they will be heated up to shorten the curing cycle.

By querying the infrared absorption spectra of rubber, we can find that both natural rubber and various new modified rubber have good absorption bands in medium and long wavelength. The ceramic infrared radiator is used as the heating source, and the infrared ray wave band emitted by the ceramic infrared radiator after electric heating is very matched with the rubber, which not only effectively shortens the heating time, but also does not affect the product appearance.

As mentioned above, the temperature range of rubber vulcanization is mostly 10 ℃, and each rubber has a maximum temperature limit, which means that when we can accurately control the temperature of the heat source, we can keep it at an optimal vulcanization temperature throughout the vulcanization process, so that it can be vulcanized at the optimal speed without affecting the products.

When you plan to use the infrared radiation heater as the heating source for rubber vulcanization, we recommend you to use the ceramic infrared heater made in Germany. The TRIMBLE ceramic infrared heater has the following advantages in rubber vulcanization:

Ø Rapid temperature rise: with the matching of infrared absorption spectrum, the rubber can quickly rise to the required temperature, and the TRIMBLE heater can effectively shorten the preheating time due to its fast temperature rise;

Ø High energy utilization efficiency: thanks to TRIMBLE's high-quality ceramics and resistance wires, the heater heats up rapidly after being powered on and radiates energy in the form of infrared radiation. The efficiency of electric energy conversion to infrared radiation energy is high;

Ø High temperature control accuracy: TRIMBLE ceramic infrared heater can accurately monitor the heater temperature through the built-in K-type temperature probe, and real-time feedback to the temperature control system to achieve timely temperature control, meet the actual production needs, and try to improve the production speed on the premise of ensuring quality;

Ø Simple erection: TRIMBLE ceramic infrared heater can be erected in a variety of ways, which can be changed and customized according to production requirements to meet the heating needs of various production lines;

Ø Simple maintenance: modular construction, minimizing maintenance costs and improving production efficiency;

Ø Long service life: TRIMBLE ceramic infrared radiator has a normal service life of more than 20000 hours

Application of Infrared Radiation Heating Technology in Glass Screen Printing

The glass screen printing production line is generally composed of glass cleaning area, ink printing area, screen printing drying area, air cooling area and stacking area.

Among them, the silk screen drying process is very important, which is directly related to the production efficiency of the entire line and the quality of the finished product.

1.On the drying area of the screen printing machine, the infrared radiator heating module is divided into several independently controllable zones, and the radiators of each zone can be switched on or off separately.

2.After applying the high-efficiency mid-wave infrared drying technology, the production speed has been greatly improved.
At the same time, due to the high efficiency brought by the mid-wave infrared drying technology to the equipment, the length of the screen printing dryer is greatly shortened, saving a lot of space.

3.In addition, the use of high-quality infrared radiators has a very long life (for example, the life of ceramic heaters produced by Trimble generally exceeds 20,000 hours), and almost no maintenance is required, so the maintenance cost is also greatly reduced.
At present, China's largest auto glass supplier has adopted mid-wave infrared drying technology on its screen printing machines to dry the screen-printed trademarks and product numbers on auto glass.

Advantages of using infrared drying compared to traditional oven drying:

1. High controllability: the drying temperature can be changed locally, and different parts can be dried at different temperatures;

2. Adaptability: Since the drying furnace is multi-temperature zone controllable, it can dry products of different sizes and styles.

3. Save space: save the length of drying line;

4. Time saving: faster drying and higher efficiency;

5.Energy saving: high energy utilization efficiency;